Finding the Fourth Proportional to 2,213.69, 3,055.01 and 1,330.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.69 : 3,055.01 = 1,330.25 : x
2. Step 2: Convert to fraction form
   2,213.69/3,055.01 = 1,330.25/x
3. Step 3: Cross multiply
   2,213.69x = 3,055.01 × 1,330.25
4. Step 4: Simplify right side
   2,213.69x = 4,063,905.13
5. Step 5: Solve for x
   x = 4,063,905.13/2,213.69
6. Step 6: Final answer
   x = 1,835.81